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Award winning Passivhaus building uses ISO-Bloco One window sealing tape


High performance foam sealing tape for Passivhaus low energy standards

High performance foam sealing tape has helped a specialist timber frame building achieve Passivhaus low energy standards.

Bespoke fenestration and composite windows company JLH Bros of Kenilworth used ISO-CHEMIE BLOCO-ONE tape to seal doors and window installations in the award-winning Whitwell House scheme on the north shore of Rutland Water.

Constructed using a mix of traditional and modern building materials, JLH used high quality doors and windows from an Austrian supplier, with the excellent U values of the super insulated frames being matched by the innovative thermal, sound reducing and weatherproofing properties of ISO- Chemie Bloco-One.

Iso-Chemie Bloco-One tape, which comes with a 10 year performance guarantee and provides up to 70% cost savings when compared to other three component systems, enables windows and doors to be quickly and easily sealed from inside the building. This avoids the need to use time consuming and costly external access systems like scaffolding and ladders, and provides guaranteed high performance sealing for the lifetime of the window.

Quick and easy-to-apply, the self-adhesive ISO-Chemie Bloco-One provides a high performance seal for window and door joints up to 30mm wide and is impermeable to driving rain at a minimum of 1,000 Pa – 66% higher reliability than most conventional joint sealing tapes.

JLH Bros continue to use ISO-Chemie tapes on all window installations to create a perfect, energy rated seal, even in uneven Cotswold stone constructions, for example.

Passivhaus or 'Passive House' is the fastest growing energy performance standard in the world and is based on achieving excellent thermal performance, and exceptional airtightness with mechanical ventilation.

The success of the Whitwell House project in achieving these aims was recognised when it was awarded the prestigious ProCon 2015 Sustainable Development Award.



News title: -    Award winning Passivhaus building uses ISO-Bloco One window sealing tape
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ISO-Chemie is one of Europe’s main producers of impregnated foam sealants, specialising in the manufacturer of foam products from polyethylene (EPE), polypropylene (EPP) and polyurethane (PUR) using the latest production techniques. The company’s UK technical and distribution operation is based in the North East of England, supported by a dedicated logistics service to ensure customer orders are completed as quickly and efficiently as possible (usually next-day delivery).

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